Type-writing machine.



J. T. SCHAAFF.

TYPE WRITING MACHINE.

APPLICATION FILED r33. 18, 1910.

Patented Aug. 8, 1911.

8 SHEETS-SHEET 1.

2 WITNESSES:

HISATTEIR'NEY COLUMBIA PLANoaRAPl-l CO WASHINGTON. D. c.

J. T. SGHAAFF.

TYPE WRITING MACHINE.

APPLICATION FILED FEB.18, 1910.

Patented Aug. 8, 1911.

8 SHEETS-SHEET 2.

INVENTIIIFL HIS AT URNEY' COLUMBIA PLANDORAPH co.. wAsl-lma'rou, B. C.

J. T. SGHAAFP. TYPE WRITING MACHINE.

APPLICATION nun FEB. 18, 1910.

Patented Aug. 8, 1911.

3 SHEETSBKEET 3.

on mv an Q 9 n on 3 6? my 5 3 5 5 g l N" Q .3 3. O 3 v m .N.\ 3 {I 2 N 9S NM m. m 3 9. R m mw \w. 2 5 a 93 3 5 wmmi m @o E {9.3 aw m. 9% no gym,/drnwm r w om-L 3 58 mM o@.\/...o I m an WITN HIS ATTDRNEY QGLUMIIAMOGRAPH CO" WASHINGTON. D. C.

We es NT onion JOHN T. SOHAAFF, OF WASHINGTON, DISTRICT OF COLUMBIA,ASSIGNOR TO UNION TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATIONOF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1911'.

Application filed February 18, 1910. Serial No. 544,560.

To all whom "it may concern:

Be it known that I, JOHN T. SCI-IAAFF, citizen of the United States, andresident of IVashington, in the District of Columbia, have inventedcertain new and useful Improvements in Type-Writing Machines, of whichthe following is a specification.

My invention relates more especially to stop mechanism for the travelingelement or carriage of a typewriting machine and its object is toprovide improved mechanism of the class specified.

To the above and other'ends my invention consists in the features ofconstruction, combinations of devices and arrangements of partshereinafter described and particularly pointed out in the claims.

More specific-ally my invention has to do with stop devices which areautomatically controlled so as variably to arr st the carriage andpermit writing of different lines to be begun at different distancesfrom the margin of the work sheet. In the present instance I mount onthe carriage a plurality of stops which are spaced apart lengthwise ofthe carriage and are out of line with each other so that they travel indifierent paths. Each of these stops is adapted to cooperate with aparticular one of a set of stops on the framework, the different membersof the set being projected automatically and in a predetermined orderfrom inoperative position into position to co-act with the associatecarriage stop. As a result of the co action between the carriage stopsand the automatically operating set of frame stops, the carriage, duringa series of return movements, will be variably arrested at predeterminedpoints so as to facilitate the writing of a particular form of workrequiring various lines to be begun at different points, such, forexample, as the heading of letters, the addresses on envelops and soforth. Manual devices also are provided for moving the whole set offrame stops into or out of operation and for other purposes hereinafterset forth.

The present embodiment of my invention will be more fully explained inconnection with the accompanying drawings, wherein Figure 1 is afragmentary plan view of a typewriting machine to which my invention isapplied, only so much of said machine being shown as is necessary to aclear understanding of my said invention. Fig. 2 is a horizontalsectional view of the stop mechanism that is mounted on the frame of themachine. Fig. 3 is a fragmentary vertical sectional view showing theupper portion of said typewriting machine. Fig. 4 is a fragmentary rearview of certain of the manually operating devices for controlling theautomatic frame stops. Fig. 5 is a perspective view of parts of mymehcanism. Figs. 6 and 7 are perspective views of one form of travelingor carriage stops. Figs. 8 and 9 are views corresponding to Fig. 2 butshowing some of the parts in different relations. Figs. 10 and 11 arefront elevations corresponding respectively to Figs. 8 and 9, partsbeing broken away in Fig. 10. Figs. 12 to 16 inclusive are perspectiveviews of different elements of my improvements shown detached. Fig. 17is a detached face view of a spring element involved in a modifiedconstruction of my invention. Fig. 18 illustrates the spring elementshown in Fig. 1*? in connection with associate parts.

My invention may be applied to any suitable typewriting machine, thatshown in the drawings being of the front-strike variety and comprising amain frame 1 surmounted by top plate sections 2 and 3, said framesupporting fixed grooved track-ways 4 to which are adapted anti-frictionballs 5, said balls also coiiperating with the connected grooved bars 6of a platen carrier or frame which further comprises end plates 7terminating at the rear in angular portions 8. The platen frame carriesa platen 9'which is equipped with suitable paper feeding and linespacing devices (not shown). It is to be understood that the machine isprovided with suitable printing, inking and carriage feeding devices andother devices required to facilitate the production of typewrittenmatter, although it has not been deemed necessary to illustrate any ofthese devices in the drawings since the full import of my invention maybe understood without their aid.

Arms 10 fixed to the parts 8 extend rearward therefrom and support astop carrying bar 11, said bar being provided at its front and rearedges with teeth a letter space distance apart between which are adaptedto fit traveling stop members such as 12. The stop member 12 isbifurcated to fit over the stop bar 11 and between the teeth thereof, atany desired point and said stop member 12 is provided at its top with arearwardly projecting lug or traveling stop proper 13. It will beunderstood that any desired number of traveling stops similar to 12 butwith stop lugs in different planes may be employed, and that these stopsmay be suitably adjusted along the stop bar to suit the work in hand.The present exemplification of my invention is particularly adapted toarrest the carriage variably to write letter headings. As is wellunderstood, such headings usually comprise a date line at the right-handside of the sheet and four address lines, one for the name, one for thestreet and number, one for the town and one for the State, these addresslines usually beginning at progressively increasing distances from thelefthand margin of the sheet. Accordingly in the present instance Iprefer to employ the stop 12 to assist in determining the point ofbeginning of the date line and to provide a single traveling stop member14 having several stop lugs. In the stop here shown I provide four stoplugs, one for each line of the address. As appears from Figs. 6 and 7the stop member 14 comprises a plate-like body portion 15, the innerface whereof is provided with a plurality of teeth 16 which are adaptedto fit over and engage with the teeth of the stop bar 11, said teeth 16underlying a lip or ledge 17 which contacts with the top of the stop bar11. The stop member 14 is main tained in position on said stop bar by aspring clip 18 which is fast to the stop member and extends over the topof the stop bar 11 and downward at the front side thereof, the free endof the spring clip curving inward and engaging with the front toothedface of stop bar 11. The rear face of the body portion 15 is providedwith rearwardly extending lugs or traveling stops proper 20, 21, 22 and23. These stop lugs, as will be understood from Figs. 1, 3 and 6,project to the same extent rearward so that their working faces lie in avertical plane longitudinal of the stop bar 11, but said stop lugs areStepped downward or lie in different horizontal planes so that theytravel in separate paths or planes which are parallel with the path oftravel of the carriage. As best appears in Fig. 3 the stop 20 travels ina path below the stop 13 while the stops 21, 22 and 23 are respectivelyin successively lower planes or positions. It will further be apparentmore especially from Figs. 1 and 6 that the working or contact faces ofthe traveling stops 20 to 23, inclusive, which faces are the right-handvertical faces, are in different vertical planes transverse of the stopbar 11, so that said stops are adapted to arrest the carriage atprogressively varying points by contact during return movements of thecarriage with the frame stops next to be described.

inclusive while any number of stops de sired may be provided in thepresent embodiment. There are five of these frame stops one for each ofthe traveling stops and they he one above the other, being adapted to beprojected forward separately through the open side of the housing 24 andinto the paths of the particular traveling stops with which they aremeant to cooperate. The frame stops which are barlike in form areoperated as levers each having a loose or sliding connection with anupright pivot pin or fulcrum rod 29 which is secured within the housing24 to the top and bottom thereof. The uppermost frame stop 30 is showndetached in Fig. 14. It has a longitudinally extending slot 31 for thefulcrum rod 29 and its rear face is formed with two V-shaped notches 32and 33 which are respectively at the left and right of the fulcrum rod.To the left of the notch 32 is a contact face 34 and a camming face 35,the rear face of the frame stop or stop bar 30 being cut away to theleft of the camming face to form a notch 36. The front lefthand portionof the bar 30 is cut away to provide a contact face or stop proper 37and a finger 38 which projects into and is adapted to be guided by a.horizontal guide slot 39 in the left-hand vertical wall of the housing24. Similar guide slots bearing the same numeral of reference 39 areprovided for the underlying frame stops. The four frame stops or stopbars which lie one above another underneath the stop bar 30 are allalike so that a description of one will apply to all, reference beingespecially had to Fig. 15 wherein one of said stop bars is showndetached and numbered 40. Said stop bar is somewhat similar to the topstop bar 30, being provided with a. slot 41 for the fulcrum rod 29 andalso having V-notches 42 and 43, a contact face 44, a camming face 45, anotch 46, a stop face 47 and a finger 48 which engages in one of theguide slots 39. At its right-hand end each of the stop bars 40 isprovided with an extension terminating in an upwardly extending lip 49,the under face of said extension being cut away as indicated at 50. Thelip 49 of the upper one of the four stop bars 40 is adapted to cooperate with the cut-away 30 formed at the righthand under side of thestop bar 30; while the lip 49 of each of the other stop bars cooperateswith the cut-away of the immediately overlying stop bar 40 as will beclearly apparent from Figs. 10 and 11. Levers or dogs 51 are arrangedone above the other within the housing behind the frame stops, saidlevers or dogs being pivoted on a fixed upright fulcrum rod 52 so thatthey may move independently. There are five of these levers or dogs onefor each frame stop, the set of levers being supported on lugs or ribs53 projecting upward from the bottom of the housing so that each lever51 is in a plane of one of the stops, the set of frame stops being alsoraised somewhat above the bottom of the housing by a lug 54 underlyingsaid set at the right and cooperating with the bottom wall of thelowermost guide slot 39 to hold the lowest frame stop slightly above thebottom of the housing. The levers 51 extend rightward from their fulcrumrod and terminate each in a for wardly extending nose 51 which isbeveled to cooperate with the V-notches in the rear face of the fulcrumstops. Each lever or dog 51 is provided with a wire spring 55 whichreacts against the back wall of the housing and tends constantly to'press its associate lever 51 forward to engage the companion frame stop.A stationary up right stop pin 56 limits the forward movements of thelevers 51. These levers, as will hereinafter appear, serve both as actuators and as detents for the frame stops. There is provided anadditional member 57 which cooperates with the frame stops and alsocombines the functions both of an actuator and a detent. Said member isshown detached in Fig. 13 and comprises a platelike body portion 57having angularly turned ears 58 at its left-hand side, said ears pivoting on a stationary vertical fulcrum rod 59. The member at itsright-hand end is provided with a beveled nose 60 which is adapt-- ed tocooperate with the rear face of the frame stops to the left of thelevers 51. The nose 60 is pressed constantly toward the frame stops by aleaf spring 61 secured to the body portion 57 and reacting against theleft-hand side of the housing 24. A stop pin (32 limits the forwardmovement of the nose 60 by engaging the body portion 57.

Referring to the operation of the frame stop mechanism as thus fardescribed, let it be assumed that the parts are in the relationshipshown in Fig. 8. At this time the nose of the topmost lever 51 will beseated in the notch 33 of the stop bar 30 while the nose 60 will be incooperation with the contact face 34 to the left of the fulcrum rod 29,with which rod the right-hand end of the slot 31 is in contact. Theresult is that the left-hand portion or arm of the stop bar 30 will bepressed forward until arrested in the position shown by the nose 51 ofthe associate lever 51. In this position of the stop bar 30 its stopface 37 will be projected forward into the path of the traveling stop13. All of the underlying stop bars 40 are at this time held ininoperative position by their associate levers 51, the noses of saidlevers being in contact with the rear edges of the stop bars 40 at theright of the notches 43 therein so that the lever springs 55 areoperating to press the right-hand portions or arms of the stop bars 40forward, the lefthand arms or portions of said stop bars being retractedwithin the housing and be ing arrested by contact with the rear walls oftheir associate guide slots 39. At this time it wil be noted that thenose 60 is opposite the cut-outs or notches 42 in the stop bars 40 butis held out of contact therewith by reason of its engagement with thecontact face 34. Assuming that a suitable work sheet has been introducedinto the machine and positioned on the platen to receive the first lineof writing, which in the present instance it will be recalled is thedate line at the top of a letter; and assuming further that the platenand platen carrier are positioned as shown in Fig. 1, then the operatorwill retract the carriage rightward by hand in the usual manner,bringing the stop lug 13 into contact with the projected stop face 37,as shown in Fig. 8. Thereafter as rightward movement of the platencarriage'and stop 13 continues, said stop will force the stop bar 30longitudinally rightward until the same is arrested by the left-hand endof stop bar 30 coming in contact with the right-hand wall of housing 24.During this rightward movement of the stop bar 30 the nose 51 will beforced rearward out of the slot 33 and will slide along the rear face ofthe stop bar to the left of said notch; while the contact face 34 willpass beyond the nose 60. As soon as this occurs the spring 55 of theassociate lever 51, acting through the nose thereof, will tend to forcethe righthand arm of the stop bar 30 forward and retract the stop face37 within the housing. This action, however, will be prevented by theengagement of the stop 13 with said stop face, which latter may beslightly inclined to facilitate its being held against retraction; andif found desirable the stop 13 may be correspondingly inclined. Duringthe rightward longitudinal movement of the stop bar 30 the vertical wallof the cut out 30- therein will engage with the lip 49 of the contiguousstop bar 40 and will slide said stop bar 40 longitudinallyrightward,bringing the notch 43 into register with the nose of theassociate lever 51, and the contact face 44 into engagement with thenose 60. The result will be that the spring 61 will force the lefthandarm of the stop bar 40, which is the topmost of the set, forward so asto project its stop face 47 into operative position. After the carriagehas been arrested in its rightward movement by the stop 87 the writingin of the date may be proceeded with, the coacting stops 37 and 13 ofcourse having arrested the carriage in proper position to begin thewriting. During the writing the carriage will move leftward and the stop13 will move with it out of contact with the stop face 37, permittingsaid stop face to be retracted. within the housing by the associatespring 55 as above explained. The position of the parts at this time isshown in Fig. 9 from which it will be perceived that the stop face 37 isinoperative while the stop face -17 of the topmost stop bar LO has beenprojected forward into position to cooperate with the associatetraveling stop 20 during the nextretraction of the carriage. When thecarriage is arrested by the cooperation of this projected stop face 47and the stop 20, it will be in position to begin the printing of thename line of the address, which is the top line thereof. During thesecond retraction of the carriage and after the engagement of the stoplug 20 with the projected stop face e7, the associate stop bar 4E0 willbe slid longitudinally rightward with the result that the nose of theassociate lever 51 will be forced out of the notch 43 and will actagainst the rear face of the arm e0 to the left of said notch to forcethe right-hand arm of the stop bar 4L0 forward and retract the stop face6L7, which operation will occur as soon as said stop face is releasedfrom the lug 20, by reason of the fact that the contact face 44 haspassed the nose (30. The longitudinal rightward. movement of theuppermost stop bar 40 will bring the vertical face of the cutaway 50therein against the lip -l9 of the immediately under lying or secondstop bar 40 and will force said second stop bar rightward, with theresult that its stop face 17 will be projected forward, as hithertoexplained, into position for cooperation with the stop lug 21.Consequently during the third retraction of the carriage it will bearrested in position for beginning the second line of the address byreason of the engagement of the stop lug 21 with the projected stop e7of the second stop bar l0; and these two engaged stops will cooperate ina manner similar to that above outlinedto effect the projection of theimmediately underlying, or third, step face 47 for engagement with thestop lug 22. Similarly the stop face i7 of the lowest, or fourth, stopbar 40 will be projected in turn and after arresting the carriage inposition for writing the last line of the address will be retractedwithin the housing so that the carriage will be left free to travel backand forth to the full extent between the usual margin stop devices (notshown) during the writing of the body of the letter.

In order to reset the frame stops in the Fig. 8 position when it isdesired to begin the address at the top of a new letter, devices areprovided comprising a rock shaft 63 (Fig. 5) which takes bearings in thetop and bottom walls of the housing, the upper end of said rock shaftbeing reduced as indicated at 64 (Fig. 5) to prevent longitudinal upwardmovement. The rock shaft extends downward through a hole in the topplate section 3 and is provided with an angular arm or crank 65 whichextends forward under the said stop plate section. Within the housingand to the right of the ends of the stop bars 40 a broad retractingplate or finger 66 is secured to the rock shaft, the lower edge of saidplate being adapted to engage the bottom of the housing and preventdownward longit-udinal movement of the rock shaft 63. When the crank arm65 is swung leftward in the direction of the arrow in Fig. 8 it willrock the shaft 68 and cause the finger 66 to engage with the ends of thestop bars 40 behind the lips e9 thereon and to move said stop barstogether to the position shown in Fig. 8. From Fig. 10 it will be notedthat the finger 66 is not high enough to engage with the stop bar 30,which consequently will not begin to move leftward until the verticalwall of the cutaway 30 is engaged by the underlying lip 49. Thereforethe stop bar 80 will have a less extent of leftward movement than theunderlying stop bars 40 and will stop in the Fig. 8 position with thestop face 37 projected forward in operative position and ready for thenext cycle of automatic operations to be begun.

Associated with the setting devices comprising the rock shaft 63 aredevices for rendering the automatic frame stops inoperafive at pleasureso as to avoid the necessity of completing the regular cycle ofoperations, in case, for example, the address should consist of a lessnumber of lines than four. The retracting devices above referred tocomprise a slidable plate 67 which is shown detached in Fig. 16, saidplate being formed with longitudinal slots (58 which receive headedscrews whereby the plate is maintained close to the under side of thetop plate section 3 and so that it may he slid back and forththerebeneath on said screws. Said plate has an upright finger 69 whichpasses through a slot 70 in the top plate section 3 and through acorresponding slot 70 in the bottom of the housing. The finger 69 islocated in the notches or cutaways 46 and 36 so that when the plate 67is slid rightward said fin ger will engage with the righthand walls ofsaid notches and will move all of the frame stops together rightward toinoperative position. Separable connections are provided between thecrank arm 65 and the plate 67, said connections comprising an angulararm having a vertical stop face 71 extending down from the under side ofsaid plate, and having also an inclined edge 72 (Fig. 16). Cooperativewith the lug or stop 71 is an engaging lug 73 which as shown clearly inFig. 5 is an upward extension or lug formed on a U-shaped member 74which embraces the crank arm 65 and is pivoted thereto at 7 5 so as tohave a limited independent movement up and down thereon, said member 74being held in normal relation with said crank arm by a cross pin 76which contacts with the top of a cutaway 65 at the forward end of saidcrank arm. During the leftward swings of the crank arm, the lug 73 willeither pass under or slide over the inclined edge 72 without affectingthe plate 67 and finger 69; and during rightward swings of said crankarm so long as the member 74 remains down in normal position thereon asshown in Figs. 3 and 5, the plate 67 will not be affected for the reasonthat the lug 73 will pass under the device 71, as clearly appears fromFig. 3. If, however, during rightward swings of the crank arm the member74 be swung up or lifted on its pivot 75 to bring the lug 73 in theplane of the engaging device 71, then the plate- 67 will be taken up andthe finger 69 will act on the stop bars 30 and 40 to retract them asabove explained.

In order conveniently to operate the setting finger 66 and theretracting finger 69 from the front of the machine, I provideconnections from the crank arm 65 and the member 74 to a lever 78 whichextends fore and aft of the machine and is provided with a finger piece79 projecting forward from beneath the top plate at the right-hand sideof the machine (Figs. 1 and The lever is fulcrumed at 80 on a swivel 81,said swivel being provided with a shouldered portion 82 and a reducedthreaded portion 83. The shouldered portion bears in the overhanging arm84 of a bracket 85 secured by screws 86 to the frame of the machine,said swivel being maintained in place on the bracket by a nut 87 whichis screwed on the threaded portion 83 until it abuts the shoulder 82.The construction is such that the swivel may turn freely on the bracket,thereby giving rotary horizontal movements to the lever 78 while thelever may also swing on its fulcrum 80 in vertical planes independentlyof the swivel. A coiled spring 88 is connected to the frame work and tothe forward arm of the lever '78 and tends constantly to draw theforward arm toward the left, maintaining it normally set in the positionshown in Fig. 1. A second coiled spring 89 also connected to theframework and to the forward arm of the lever 78, tends constantly todraw the forward arm downward and raise the rear arm of said lever. Saidrear arm has an upward extension which is pivotally connected at 90 witha member 91 which has the functions both of a link and a lever, saidmember being pivotally connected at its inner end at 92 with adownwardly extending lug 74 (Fig. 5) on the member 74. As best shown inFig. 4 the member 91 is formed with an elongated slot 93 whichcooperates with a pivot pin 94 carried by a swivel 95, said swivelbearing in an opening in the top plate section 3 and being held in placeby a nut 96. The construction is such that the member 91 may turn on thepin 94 as a' fulcrum independently of the swivel and may also slidelongitudinally as a link; while said member may also turn together withthe swivel 95 in substantially horizontal planes beneath the top plate.

The manual devices above described may be actuated to set the framestops for operation or to retract them out of operative position. Bymerely pressing the finger piece 79 horizontally rightward the member 91is forced longitudinally inward and operates to swing the crank arm 65leftward, causing the finger 66 to set the frame stops in the Fig. 8position, after which the finger piece may be released, permitting themanual devices to be restored to normal position by the spring 88. If atany time during the cycle of automatic operations of the frame stops itbe desired to render the entire set inoperative, the finger piece 79 maybe swung horizontally outward, thereby swinging the stop 73 to the leftof the stop 71. Next the finger piece 79 is lifted, lowering the reararm of the lever 78 and swinging the inner arm of the member 91 upward,thereby raising the stop 73 into the plane of the stop 71; after whichthe finger piece 79 is swung back to normal position, the finger piece79 being held raised during such swinging back movement. As a resultthereof the stop 73 will engage with the stop 71 and slide the plate 67rightward to the Fig. 2 position, causing the finger 69 to retract theentire set of frame stops to inoperative position as shown in said Fig.2.

Various changes may be resorted to with out departing from the spiritand scope of my present invention. An example of such changes isillustrated in the modified construction shown in Figs. 17 and 18. Inthis modified construction the set of levers 51 and the member 57 arereplaced by a single element which is shown detached in Fig. 17 andnumbered 97. Said member 97 is made of sheet metal which is cut out toprovide a set of spring tongues 98, each of which terminates in anangular portion 99, thus providing a beveled end on each tongue 98corresponding to the noses 51 of the levers or dogs 51 which levers thespring tongues 98 replace. The member 97 has a slot 100 to reduce thestiffness of the metal and the end of the member opposite from thespring tongues is bent as indicated at 101, thus pro viding a beveledportion or V-rib corresponding to the nose 00 of the prior construction.The member 97 is provided with holes 102 which receive screws 103, saidscrews securing said member 07 to a stationary upright standard 104:within the housing 24L. Vertical stop pins 105 and 100 cooperate withthe member at opposite sides of the standard 10% to limit forwardmovement of respectively the spring tongues 98 and the beveled portionor V-rib 101. The inherent spring of the metal tends constantly tomaintain the tongues 98 and V-ribs 101 forward in contact with theirstop pins 105 and 106. It will be understood that the spring tongues andthe V-rib portion 101 are adapted to cooperate with the slots 33 and 32in the stop bar 30 and also with the slots 13 and .1-2 in the stop bars40, performing the same functions as the elements which the member 97replaces in the prior construction.

Besides the changes above referred to various other changes may beresorted to Within my invention.

It will be noted that by my present invention I combine a carriage,stops thereon, a set of cooperating stops arranged in planes registeringalways with said first named stops, and means for automaticallyoperating a plurality of said set of cooperating stops so as to renderthem operative one at a time by projecting them in predetermined orderinto the paths of the stops on the carriage with which they are adaptedto co-act, said plurality of stops being normally out of the paths oftheir co -acting stops on the carriage; that the set of cooperatingstops as a whole is movable back and forth by hand-controlled means;that the stops on the carriage are adjustable therealong, and theircontact faces travel in separate and distinct paths; that thecooperating steps, which are mounted on the machine frame and may betermed frame stops, are in the nature of margin stops which are combinedwith automatic means for bringing them into working relationship withtheir associate co-acting stops on the carriage so as to vary themarginal point at which the carriage is arrested during successivereturn movements; that hand mechanism is provided for setting thecooperating stops for cooperation, means being provided which. operatethereafter automatically to move the set of stops back and forth one ata time, the automatic means operating through the stop first projectedby said hand mechanism; that devices controlled by said hand mechanismact to render said set of stops inoperative, said devices comprising aslidable plate provided with an upright finger, said devices and saidhand mechanism together comprising manual means for setting said set ofstops for operation and for retracting all of said set of stops atpleasure to inoperative position; that a plurality of stops on thecarriage are arranged in different planes and have unvarying paths ofmovementin said planes, these stops co-acting with a plurality of a setof cooperating stops each being movable by automatic means in adifferent plane corresponding to the plane in which one of the stops onthe carraige is movable; and that the cooperating stops are manuallymovable back and forthin different planes while automatic means areadapted to move said cooperating stops in the same planes, the automaticmovement being at substantially right angles to the directions in whichthe manual movements take place.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a carriage, a pluralityof stops arranged in different planes, a plurality of cooperating stopsarranged in planes registering always with said first named stops, andmeans operating automatically to put said pluralities of stops incooperative relationship.

2. In a typewriting machine, the combination of a carriage, a pluralityof stops arranged in different planes, a plurality of cooperating stopsarranged in planes register ing with said first named stops, butnormally out of the path thereof, and means operating automatically toproject said cooperating stops into and out of the paths of said firstnamed stops.

3. In a typewriting machine, the combination of a carriage, a pluralityof stops arranged in different planes, a plurality of cooperating stopsarranged in planes registering with said first named stops but normallyout of the path thereof, and means operating automatically to projectsaid cooperating stops one at a time into and out of co-acting position.

4-. In a typewriting machine, the combination of a carriage, a pluralityof stops adjustable thereon, the contact faces of said stops travelingin separate and distinct paths, a plurality of frame stops one for eachof said plurality of traveling stops, and means for automaticallyprojecting the frame stops one at a time into and out of the paths oftheir associate traveling stops.

In a typewriting machine, the combination of a carriage, a plurality ofmargin stops, a plurality of co-acting stops, and automatic means forbringing said margin stops into working relationship "with theirassociate co-acting stops.

6. In a typewriting machine, the combination of a carriage, a pluralityof separately movable margin stops, a plurality of co-acting stops, andautomatic means for moving the margin stops one at a time into workingrelationship with said associate coacting stops.

7. In a typewriting machine, the combination of a carriage, a pluralityof separately movable margin stops, a plurality of co-acting stops, andmeans acting automatically during successive return movements of thecarriage to move the margin stops in predetermined order one at a timeinto working relationship with their associate coacting stops on thecarriage so as to arrest the carriage variably during successive returnmovements.

8. In a typewriting machine, the combination of a carriage, a pluralityof stops arranged in different planes, a plurality of cooperating stopsarranged in planes registering with said first named stops, and meansoperating automatically to move said cooperating stops into and out ofoperative position in predetermined order.

9. In a typewriting machine, the combination of a carriage, stopsarranged in clifferent planes, a set of cooperating stops arranged inplanes registering with said first named stops, hand mechanism forsetting said set of stops for operation, and means for thereafterautomatically moving said set of stops back and forth one at a time.

10. In a typewriting machine, the combination of a carriage, stopsarranged in different planes, a set of cooperating stops arranged inplanes registering with said first named stops, hand mechanism forprojecting one of said set in operative position, and automatic meansoperating through said projected stop to project the other members ofsaid set successively into operative positions.

11. In a typewriting machine, the combi nation of a carriage, stopsarranged in different planes, a set of cooperating stops arranged inplanes registering with said firstnamed stops, hand mechanism forsetting said set of stops for operation, means for thereafterautomatically moving said set of stops back and forth one at a time, anddevices controlled by said hand mechanism for rendering said set ofstops inoperative.

12. In a typewriting machine, the co-mbi nation of a carriage, aplurality of stops arranged in different planes, a set of cooper atingstops arranged in planes registering with said first-named stops, andmanual means for setting said set of stops for operation and forretracting all of said set of stops at pleasure to inoperative position.

13. In a typewriting machine, the combi nation of a carriage, aplurality of stops arranged in different planes and having unvaryingpaths of movement in said planes, a plurality of cooperating stops eachmovable in a different plane corresponding to the plane in which one ofthe first-named stops is movable, and means operative automatically tobring said stops into co-action.

14. In a typewriting machine, the combination of a carriage, a pluralityof stops each movable in a different plane, a plurality of cooperatingstops each movable in a different plane corresponding to the plane inwhich one of the first-named stops is movable, and means operativeautomatically to bring said stops into co-action one after another inpredetermined order.

15. In a typewriting machine, the combination of a carriage, a pluralityof stops arranged in different planes, a plurality of cooperating stopsarranged in planes registering with said first named stops, manual meansfor moving said cooperating stops back and forth, and automatic meansfor moving said cooperating stops back and forth in a difierentdirection.

16. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of cooperating stops, manual means for moving saidcooperating stops back and forth in different planes, and automaticmeans for moving said cooperating stops in the same planes.

17. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of cooperating stops, manual means for moving saidcooperating stops back and forth in different planes, and automaticmeans for moving said cooperating stops in the same planes atsubstantially right angles to the directions in which said stops aremoved by said manual means.

18. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of cooperating stops, and means for causing saidcooperating stops to oper ate one on another to render said otheroperative.

19. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of cooperating stops, and means for causing saidcooperative stops to operate one on another in a predetermined order soas to render certain of said cooperative stops successively operative.

20. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of cooperating stop levers, and means forautomatically swinging said stop levers on their fulcrums into and outof operative position.

21. In a typewriting machine, the combination of a carriage, a pluralityof stops, a

plurality of cooperating stop levers arranged in parallel planes, andmeans for automatically moving said stop levers into position tocooperate with said stops to variably arrest the carriage.

22. In a typewriting machine, the combination of a carriage, astop, acooperating stop lever, and automatic means operating alternately onopposite sides of the fulcrum of said lever to swing it to and fro inits fulcrum into and out of position to co-act with said stop.

23. In a typewriting machine, the combination of a carriage, a pluralityof stops, a plurality of slidable cooperating stop levers, automaticmeans for causing said stop levers to slidably move one another, andmeans for swinging said levers independently on their t'ulcrums.

24:. In a typewriting machine, the combi nation of a carriage, aplurality of stops, a plurality of pivoted and slidable cooperatingstops, means for sliding said stops simultaneously back and forth inopposite directions, and means for swinging said stops separately inditterent directions from those in which said stops slide.

25. In a typewriting machine, the combination of a carriage, stops, aset of pivoted cooperating stops, spring means adapted to act on saidpivoted stops on opposite sides of their pivots, and means for renderingthe spring means operative at opposite sides of said pivots inalternation.

26. In a typewriting machine, the combi nation of a carriage, stops,pivoted and slidable cooperative stop bars, means for moving said stepbars endwise, and spring means for moving said stop bars pivotally.

27. In a typewriting machine, the combination of a carriage, a pluralityof stops, cooperative stop bars each provided with a notch, andspring-pressed levers one for each stop bar, said levers having nosesengageable with said notches and said stop bars being movable to bringsaid notches into and out of engagement with said noses.

28. In a typewriting machine, the combination of a carriage, a pluralityof stops, cooperative stop bars each provided with a notch,spring-pressed moving levers one for each stop bar, said levers havingnoses engageable with said notches and said stop bars being movable tobring said notches into and out of engagei'nent with said noses, and aspring-pressed member engageable with said stop bars to move the same.

29. In a typewriting machine, the combination of a carriage, a pluralityof stops, cooperative stop bars each provided with a notch,spring-pressed levers one for each stop bar, said levers having nosesengageable with said notches and said stop bars be ing movable to bringsaid notches into and out of engagement with said noses, and aspring-pressed member having a nose also engageable with said stop bars,said stop bars being slidable to render said noses operative on eachstop bar at different times.

30. In a typewriting machine, the combination of a carriage, a pluralityof stops, cooperative stop bars each provided with a notch,spring-pressed levers one for each stop bar, said levers having nosesengageable with said notches and said stop bars being movable to bringsaid notches into and out of engagement with said noses, and aspring-pressed member also engageable with said step bars, said stopbars being slidable to cause said levers and said member to reciprocatesaid stop bars pivotally.

31. In a t-ypewriting machine, the co1nbi nation of a carriage, steps, aplurality of cooperative stops, and means for moving sii'nnltanecuslysaid plurality of cooperative stops, said means comprising a pivotallymounted finger, a hand lever, and connections between said hand leverand said finger, said linger being normally disconnected from saidstops.

32. In a typewrit-ing machine, the combination of a carriage, stops,cooperative stops, means for moving said cooperative stops in onedirection, said means comprising a pivotally mounted finger, a handlever, and. connections between said hand lever and said finger, andmeans for moving said cooperative stops in the opposite direction, saidlast recited means comprising a slidable member, and engageable lugscontrolled by said hand lever.

In a typewriting machine, the combination or a carriage, stops,cooperative stops, and means for moving said stops in one direction,said means comprising a slidable plate having a lug thereon, a member ona pivotal support, said member carrying a lug and being adapted to swingindependently of said support to bring said lug into the path of saidfirst-named lug.

In a typewriting machine, the combination of a :arriage, stops,cooperative stops, means for moving said stops in one direction, saidmeans comprising a slidable plate having a lug thereon, a member on apivotal support, said member carrying a lug and being adapted to swingindependently of said support to bring said lug into the path of saidfirst-named lug, and hand means for controlling said member, said handmeans comprising a lever mounted on a swivel.

In a typewriting machine, the combination of a carriage, stops,cooperative stops, means {or moving said stops in one direction, saidmeans comprising a slidable plate having a lug thereon, a member on apivotal support, said member being adapted to swing independently ofsaid support and t0 co-act with said lug, and hand means for controllingsaid member, said hand means comprising a lever mounted on a swivel anda second member slidably and pivotally mounted on a second swivel andconnected with said lever.

36. In a typewriting machine, the combination of a carriage, stops,cooperative stop bars overlying one another, certain of said 37. In atypewriting machine, the combi 5 nation of a carriage, carriage stopsthereon arranged in different horizontal planes, a set of cooperativestop bars arranged one on top of another each in the plane of one ofsaid carriage stops, and lugs on certain of said stop bars adapted tomove certain other of said stop bars.

38. In a typewriting machine, the combination of a carriage, carriagestops thereon arranged in different horizontal planes, a set ofcooperative stop bars, means on certain of said stop bars to movecertain other of said stop bars for rendering them operative one at atime, and hand operated means for moving said set of stop bars togetherback and forth.

Signed at Bridgeport, in the county of Fairfield, and State ofConnecticut, this 15th day of February A. D. 1910.

JOHN T. SCHAAFF.

Witnesses J. NAIRN, EDITH MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. O.

